4.3 bootstrap broken on i386-linux

[FX Coudert]

Hi all,

My nightly bootstrap of mainline on i386-linux failed tonight, on  
revision 123192, with:

/home/fxcoudert/gfortran_nightbuild/trunk/libgcc/../libdecnumber/ 
decLibrary.c: In function ?isinfd64?:
/home/fxcoudert/gfortran_nightbuild/trunk/libgcc/../libdecnumber/ 
decLibrary.c:65: error: unrecognizable insn:
(insn 11 10 12 3 /home/fxcoudert/gfortran_nightbuild/trunk/libgcc/../ 
libdecnumber/decLibrary.c:62 (set (reg/f:SI 61)
         (pre_dec:SI (reg/f:SI 7 sp))) -1 (nil)
     (nil))
/home/fxcoudert/gfortran_nightbuild/trunk/libgcc/../libdecnumber/ 
decLibrary.c:65: internal compiler error: in extract_insn, at recog.c: 
2119

The last revision known to compile OK on that particular setup was:  
123178. I filed it as PR 31344 in bugzilla. The compilation fails for  
-mtune=i[345]86 while it doesn't ICE for -mtune=i686.

FX